79801165427 has 8 divisors (see below), whose sum is σ = 79937212320. Its totient is φ = 79665215040.

The previous prime is 79801165421. The next prime is 79801165429. The reversal of 79801165427 is 72456110897.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79801165427 - 2¹⁰ = 79801164403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79801165421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1739399 + ... + 1784687.

It is an arithmetic number, because the mean of its divisors is an integer number (9992151540).

Almost surely, 2^79801165427 is an apocalyptic number.

79801165427 is a deficient number, since it is larger than the sum of its proper divisors (136046893).

79801165427 is a wasteful number, since it uses less digits than its factorization.

79801165427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48253.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 79801165427 in words is "seventy-nine billion, eight hundred one million, one hundred sixty-five thousand, four hundred twenty-seven".